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# 733). The distribution of mass within the core of the Earth,

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Director
Joined: 04 Jan 2008
Posts: 866
733). The distribution of mass within the core of the Earth, [#permalink]

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03 Mar 2009, 01:21
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Question Stats:

100% (00:08) correct 0% (00:00) wrong based on 6 sessions

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733). The distribution of mass within the core of the Earth, like the mantle that surrounds the core, has been deduced from the orbital behavior of the Earth and the motions of satellites controlled by the gravity of the Earth.

(A) the mantle that surrounds the core

(B) that within the mantle surrounding the core

(C) that of the mantle surrounding the core

(D) the mantle the core surrounds

(E) the distribution of mass within the mantle that surrounds the core
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Manager
Joined: 10 Jan 2009
Posts: 107
Re: SC-733/1000-The distribution of mass within the core of the. [#permalink]

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03 Mar 2009, 04:02
The distribution of mass within the core of the Earth, like the mantle that surrounds the core, has been deduced from the orbital behavior of the Earth and the motions of satellites controlled by the gravity of the Earth.

Explanation:
By selecting either A or D, we’re comparing apples (distribution of mass within the core of the Earth) with oranges (the mantle that surrounds the core), which is not correct.
-------------------------
(A) the mantle that surrounds the core ---> Comparing apples with oranges.

(B) that within the mantle surrounding the core ---> Correct comparison, concise & parallel.

(C) that of the mantle surrounding the core ---> Distorts the meaning; comparing distribution of mass & distribution of mantle. This was close and tricky.

(D) the mantle the core surrounds ---> Comparing apples with oranges.

(E) the distribution of mass within the mantle that surrounds the core ---> I have rejected this only because it’s lengthy.
-------------------------

My choice is clearly B.

Hope that helps.

Regards,
Technext
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VP
Joined: 18 May 2008
Posts: 1203
Re: SC-733/1000-The distribution of mass within the core of the. [#permalink]

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03 Mar 2009, 09:18
yes my choice is also B bcos of correct comparison and parallelism.....
Technext wrote:
The distribution of mass within the core of the Earth, like the mantle that surrounds the core, has been deduced from the orbital behavior of the Earth and the motions of satellites controlled by the gravity of the Earth.

Explanation:
By selecting either A or D, we’re comparing apples (distribution of mass within the core of the Earth) with oranges (the mantle that surrounds the core), which is not correct.
-------------------------
(A) the mantle that surrounds the core ---> Comparing apples with oranges.

(B) that within the mantle surrounding the core ---> Correct comparison, concise & parallel.

(C) that of the mantle surrounding the core ---> Distorts the meaning; comparing distribution of mass & distribution of mantle. This was close and tricky.

(D) the mantle the core surrounds ---> Comparing apples with oranges.

(E) the distribution of mass within the mantle that surrounds the core ---> I have rejected this only because it’s lengthy.
-------------------------

My choice is clearly B.

Hope that helps.

Regards,
Technext
Director
Joined: 29 Aug 2005
Posts: 836
Re: SC-733/1000-The distribution of mass within the core of the. [#permalink]

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04 Mar 2009, 07:50
As the guys said, B and C are grammatically OK - only that C does not make sense.
Re: SC-733/1000-The distribution of mass within the core of the.   [#permalink] 04 Mar 2009, 07:50
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